I am surprised Brandon from Code 3 didnt post this over here as well so I thought I would do it for him.

$25 PCV Solution for C32 ~ DIY
I for one am sick of the amount of oil pulled into the intake, SC, and IC. When I was on vacation, we were driving along, and the check engine light came on. I pulled the code, and it was the IAT sensor. When I got home, I pulled everything apart, and lo and behold, the IAT sensor was covered in oil. In fact, everything was covered in oil again (intake, surge tanks, throttle body, y-pipe, and ic). Considering it had only been about a month since I cleaned everything, I was disappointed to say the least. So I finally decided to put together an oil catch can setup. I really don't have a lot of extra money right now. So I figured I could put together a budget oriented catch can setup, and share it with everyone. This is what I came up with.

Here is a shot of the normal PCV setup on the C32

There is one port on the passenger side, and two on the driver side. One port on each side connects underneath the throttle body, and is plugged into the underside of it. The second port on the driver side goes to the intake.

Here is a shot of my modified PCV setup

I capped off the the port on the end of driver side valve cover, the throttle body, and the intake (indicated in red). I then ran a hose (green)from the Y under the throttle body to an air compressor filter (blue), then another hose to the empty vacuum port on the sc.

Here is what I purchased:

• 1/2" to 3/8" barbed coupler
• 1/4" NPT to 3/8" barbed fitting
• 1/4" NPT to 1/8" barbed fitting
• teflon tape
• hose clamps x 2
• 3/4" vacuum cap x 2
• 1/2" vacuum cap
• 1/2" hoses x 4'
• 1/4" hoses x 4' (the 1/4" hoses fits on the 1/8" barb nicely)
• Mini Air Compressor Filter
• bolts for mounting
• zip ties for hose routing

Here is the modified setup off the car


Here is the coupling at the Y connection. 1/2" to 3/8" barbed.